Effect of cationic polyDADMAC-based fixing agent on strength properties of OCC pulp

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Ahmadi Lajimi A.; AZADFALLAH M.; HAMZEH Y.; RAHMANINIA M.

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Journal: IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES Year:2020 | Volume:10 | Issue:4 Page(s): 605-616

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Title

Effect of cationic polyDADMAC-based fixing agent on strength properties of OCC pulp

Author(s)

Ahmadi Lajimi A. | AZADFALLAH M. | HAMZEH Y. | RAHMANINIA M. | Issue Writer Certificate

Keywords

stickiesQ1

polyDADMACQ1

OCC pulpQ1

strength propertiesQ2

Abstract

stickies are one of the main challenges in the papermaking industry, especially in recycling process of old corrugated containers (OCC). Application of a fixing cationic polymer is one of the main approaches to control these harmful substances. However, it is obvious that these agents besides fixing characters could also influence the final product properties. Therefore, in this study, the effect of using an industrial cationic polymer i. e. GL (Trade name), as a stickies control agent on mechanical properties of hand-sheets made of OCC fibers, was assessed at three levels of 0. 4, 0. 8 and 1. 2% (based on pulp dry weight) and at two pH ranges of 4 and 7. The characterization of the GL by FT-IR spectroscopy demonstrated that it was synthesized based on poly (diallyldimethylammoniumchloride). The results showed that use of the cationic polymer enhanced the strength properties of the hand-sheets by influencing formation and inter-fiber bonding through fixing and flocculating the stickies and fines into the fibers network. These respective enhancements were measured at pH ranges of 4 and 7 as follows: Tensile strength of 35 and 30%, burst strength of 12 and 10%, ring crush test (RCT) of 29 and 21%, Concora medium test (CMT) of 19 and 32% and tear strength of 10 and 13%. It can be concluded that 0. 4 % GL cationic fixing agent could be proposed as optimum value at pH =7 for industrial applications.

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APA: Copy

Ahmadi Lajimi, A., AZADFALLAH, M., HAMZEH, Y., & RAHMANINIA, M.. (2020). Effect of cationic polyDADMAC-based fixing agent on strength properties of OCC pulp. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 10(4 ), 605-616. SID. https://sid.ir/paper/184438/en

Vancouver: Copy

Ahmadi Lajimi A., AZADFALLAH M., HAMZEH Y., RAHMANINIA M.. Effect of cationic polyDADMAC-based fixing agent on strength properties of OCC pulp. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2020;10(4 ):605-616. Available from: https://sid.ir/paper/184438/en

IEEE: Copy

A. Ahmadi Lajimi, M. AZADFALLAH, Y. HAMZEH, and M. RAHMANINIA, “Effect of cationic polyDADMAC-based fixing agent on strength properties of OCC pulp,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 10, no. 4 , pp. 605–616, 2020, [Online]. Available: https://sid.ir/paper/184438/en

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